While Leinster have been conquering all before them on their way to an unbeaten Champions Cup title run, Leo Cullen and Stuart Lancaster have bagged most of the public praise.

The head coach and senior coach have been credited with the Irish province's resurgence as a continental superpower with an all-round, versatile game to see off any club foe.

But behind the scenes the one with the baseball cap - Girvan Dempsey - has been a low-key mastermind. The former Ireland international who is coming to Bath Rugby as a new attack coach this summer apparently has a "playbook to die for".

When one lists the best clubs in the northern hemisphere at attacking off first-phase - two are likely to spring to mind above all others... Wasps and Leinster.

His early life...

His rugby career...

Dempsey played 198 times for Leinster; scoring 184 points. By the end of his club career he had won two Celtic Leagues (2001/2, 2007/8) and the Champions Cup in 2008/9 against Leicester Tigers at Murrayfield.

Dempsey made his Ireland debut on November 14, 1998, as a replacement full-back against Georgia at Lansdowne Road. He scored his first two tries in that game.

His coaching career...

After retiring, Dempsey became Leinster's elite player development officer in the summer of 2010. In 2012, he became Leinster Academy Manager and helped to develop much of the young talent now impressing for Leinster and Ireland.

He has also helped out with coaching at his former university and college, Terenure, who play in the All-Ireland League.

Dempsey took charge of Leinster's backs in August 2015 - initially until the end of the World Cup - before getting the job permanently.

The 42-year-old was also part of Joe Schmidt’s Ireland coaching team for last summer’s tour of USA and Japan.

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What does the man himself have to say?

Dempsey, who has been married to Anne-Marie for 12 years and has two sons, Peter and Patrick, said: "I’m really looking forward to starting a new chapter in my coaching career. I’ve thoroughly enjoyed my time with Leinster, but I’m excited about what lies ahead with Bath.

"They have a world-class set-up and playing squad. I will be looking to bring my experiences and knowledge to support Todd and the coaching team in delivering success to this great club."